Crimea didn't "choose their own path." They had a plebiscite forced on them - illegally, according to their own constitution - and there were two options on it: to join Russia, or to be independent, with a view to joining Russia in the future. :nono
As for the "go back home" comment, you're obviously not familiar with the ex-USSR states which have huge Russian populations in them, population movement that was designed to suppress rather than nurture. Now, the USSR is gone, and these people are fairly citizens of the Baltic States, Ukraine, etc. But as you yourself put it, "the Russians are agitating in the eastern states."
That's not only in Ukraine, but it's the Baltic States too. And what is the purpose of this, if not Putin to come riding in to "protect" his Russians? This is the fear in these countries, and it's why they joined NATO - and (reluctantly, for the main part, since they'd only recently overthrown one corrupt union of nations), the EU. It was even long before the Russians invaded Ukraine that Latvia made its stand on language. I know that in Estonia there is a huge fear/resentment of the Russians living there, because the Russian population would be more leaning towards Putin than their own parliament. I know this one, because my own masseuse is a Russian Estonian.
But I knew it from about ten years ago too, because one of our pals on the retreats we go to is Estonian, but not of the Russian variety. talking to people like this gives an exact picture of how people feel in the east. My own father-in-law lived in Siberia until he was twelve. That wasn't an episode of Hi-De-Hi, lemme tell ye.
If people don't feel they belong in a new place, they have the right to return to where they're from. I've said this to my wife's pals when they come here to live and spend their time moaning about Ireland: if you don't like it, you shoulda bought a return ticket. Nobody is forcing them to stay in Ireland. Likewise, when I hear of Muslim communities agitating to have Sharia law brought in, hate clerics from the Middle East claiming asylum and causing trouble, and you know this is a problem not only in the UK.
The Russian communities in eastern European countries are welcome to stay, they are citizens in those countries, providing, of course, they
meet the criteria.
As for drone striking, I expect little more from the useless Obama. I'm not a supporter of western foreign policy, my friend, because as you can see with regards to Ukraine, it's frequently cackhanded...